iphone - Restkit 0.20 objects are not mapped after getting json response -

i'm using restkit 0.20. i'm trying download json response local rails application , save core-data. tried follow https://github.com/restkit/rkgist/blob/master/tutorial.md , worked fine.
wanted use many times made base class(listcontroller) , subclassed sessionlistcontroller , eventlistcontroller. mapping provided in appdelegate.m.

the app has first viewcontroller root controller maps responses , works fine. change viewcontroller response , operation stops. does't if mapping has started. i'm not sure have missed.

here i'm initialising restkit

appdelegate.m

#import "appdelegate.h" #import <uikit/uikit.h>  @implementation appdelegate     rkentitymapping *evententitymapping,*sessionentitiymapping;  - (bool)application:(uiapplication *)application didfinishlaunchingwithoptions:(nsdictionary *)launchoptions { nserror *error = nil; nsurl *modelurl = [nsurl fileurlwithpath:[[nsbundle mainbundle] pathforresource:@"event" oftype:@"momd"]]; nsmanagedobjectmodel *managedobjectmodel = [[[nsmanagedobjectmodel alloc] initwithcontentsofurl:modelurl] mutablecopy]; [self setmanagedobjectstore: [[rkmanagedobjectstore alloc] initwithmanagedobjectmodel:managedobjectmodel]];  // initialize core data stack [self.managedobjectstore createpersistentstorecoordinator];  nspersistentstore __unused *persistentstore = [self.managedobjectstore addinmemorypersistentstore:&error]; nsassert(persistentstore, @"failed add persistent store: %@", error);  [self.managedobjectstore createmanagedobjectcontexts];  // set default store shared instance [rkmanagedobjectstore setdefaultstore:self.managedobjectstore];  nsstring *url=@"http://192.168.11.11:3000";  rkobjectmanager *objectmanager = [rkobjectmanager managerwithbaseurl:[nsurl urlwithstring:url]]; objectmanager.managedobjectstore = self.managedobjectstore;  [rkobjectmanager setsharedmanager:objectmanager];  [self mapentities]; rkresponsedescriptor *responsedescriptor = [rkresponsedescriptor responsedescriptorwithmapping:evententitymapping pathpattern:@"/api/v1/events" keypath:nil statuscodes:rkstatuscodeindexsetforclass(rkstatuscodeclasssuccessful)];  [objectmanager addresponsedescriptor:responsedescriptor];  rkresponsedescriptor *responsedescriptor2 = [rkresponsedescriptor responsedescriptorwithmapping:sessionentitiymapping pathpattern:@"/api/v1/sessions" keypath:nil statuscodes:rkstatuscodeindexsetforclass(rkstatuscodeclasssuccessful)];  [objectmanager addresponsedescriptor:responsedescriptor2];   // override point customization after application launch. uistoryboard *storyboard = [uistoryboard storyboardwithname:@"mainstoryboard_iphone" bundle:nil]; uinavigationcontroller *navigationcontroller = [storyboard instantiateviewcontrollerwithidentifier:@"maincentercontroller"];  iiviewdeckcontroller* seconddeckcontroller =  [[iiviewdeckcontroller alloc] initwithcenterviewcontroller:navigationcontroller                                                                                       leftviewcontroller:[storyboard instantiateviewcontrollerwithidentifier:@"sidebarcontroller"]]; seconddeckcontroller.centerhiddeninteractivity=iiviewdeckcenterhiddennotuserinteractivewithtaptoclose; self.window.rootviewcontroller = seconddeckcontroller; return yes; }  -(void)mapentities{ //event evententitymapping = [rkentitymapping mappingforentityforname:@"event" inmanagedobjectstore:self.managedobjectstore]; [evententitymapping addattributemappingsfromdictionary:@{  @"id":             @"event_id",  @"name":           @"name",  @"description":    @"desc",  @"no_of_days":     @"no_of_days",  @"start_date":     @"start_date",  }]; evententitymapping.identificationattributes = @[ @"event_id" ];  sessionentitiymapping = [rkentitymapping mappingforentityforname:@"session" inmanagedobjectstore:self.managedobjectstore]; [sessionentitiymapping addattributemappingsfromdictionary:@{  @"name":           @"name",  @"description":    @"desc",  @"start_time":     @"start_time",  @"duration":       @"duration",  @"location_id":    @"location_id",  @"event_id":       @"event_id",  @"id":             @"session_id",  }]; sessionentitiymapping.identificationattributes = @[ @"session_id" ]; } 

base class i'm calling getobjectsatpath rkmanager depending on base class.

listcontroller.m

@implementation listcontroller - (void)viewdidload { [super viewdidload]; appdelegate *appdelegate = (appdelegate *)[[uiapplication sharedapplication] delegate]; self.managedobjectcontext = appdelegate.managedobjectstore.mainqueuemanagedobjectcontext; [self loadlocs]; [self.refreshcontrol beginrefreshing]; }  -(void)setmodel:(models)model{ if(self.model!=model){     _model=model;     self.title=[model displayfor:self.model];     _fetchedresultscontroller = nil;     [self.tableview reloaddata];     [self loadlocs];     [self.refreshcontrol beginrefreshing]; } }  - (void)loadlocs { [[rkobjectmanager sharedmanager] getobjectsatpath:[model listapifor:self.model]                                        parameters:nil                                           success:^(rkobjectrequestoperation *operation, rkmappingresult *mappingresult) {                                               [self.refreshcontrol endrefreshing];                                           }                                           failure:^(rkobjectrequestoperation *operation, nserror *error) {                                               [self.refreshcontrol endrefreshing];                                               uialertview *alertview = [[uialertview alloc] initwithtitle:@"an error has occurred" message:[error localizeddescription] delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil];                                               nslog(@"error: %@",error);                                               [alertview show];                                           }]; }   #pragma mark - table view  - (nsinteger)numberofsectionsintableview:(uitableview *)tableview { return [[[self fetchedrcfortableview:tableview] sections] count]; }  - (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section{ id <nsfetchedresultssectioninfo> sectioninfo = [self.fetchedresultscontroller sections][section]; return [sectioninfo numberofobjects]; }  - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath { uitableviewcell *cell = [self.tableview dequeuereusablecellwithidentifier:@"cell" forindexpath:indexpath]; [self configurecell:cell atindexpath:indexpath fortableview:tableview]; return cell; }  #pragma mark - fetched results controller - (nsfetchedresultscontroller *)fetchedresultscontroller { if (_fetchedresultscontroller != nil) {     return _fetchedresultscontroller; }  nsfetchrequest *fetchrequest = [[nsfetchrequest alloc] init]; // edit entity name appropriate. nsentitydescription *entity = [nsentitydescription entityforname:[model entityfor:self.model] inmanagedobjectcontext:self.managedobjectcontext]; [fetchrequest setentity:entity];  // set batch size suitable number. [fetchrequest setfetchbatchsize:20];  // edit sort key appropriate. nssortdescriptor *sortdescriptor = [[nssortdescriptor alloc] initwithkey:[model sortdescriptorfor:self.model] ascending:yes]; nsarray *sortdescriptors = @[sortdescriptor];  [fetchrequest setsortdescriptors:sortdescriptors];  nsfetchedresultscontroller *afetchedresultscontroller = [[nsfetchedresultscontroller alloc] initwithfetchrequest:fetchrequest managedobjectcontext:self.managedobjectcontext sectionnamekeypath:nil cachename:[model displayfor:self.model]]; afetchedresultscontroller.delegate = self; self.fetchedresultscontroller = afetchedresultscontroller;  nserror *error = nil; if (![self.fetchedresultscontroller performfetch:&error]) {     nslog(@"unresolved error %@, %@", error, [error userinfo]);     abort(); } nslog(@"_fetchedresultscontroller count %d",_fetchedresultscontroller.fetchedobjects.count); return _fetchedresultscontroller; }  @end 

this 1 of base classes set model name

eventviewcontroller.m

- (void)viewdidload { [super viewdidload]; self.model=eventm; // additional setup after loading view. } 

sessionviewcontroller.m

- (void)viewdidload { [super viewdidload]; self.model=sessionm; // additional setup after loading view. } 

full code @ https://github.com/leohemanth/event-app

after using

rklogconfigurebyname("restkit", rkloglevelwarning); rklogconfigurebyname("restkit/objectmapping", rklogleveltrace); rklogconfigurebyname("restkit/network", rklogleveltrace); 

i can see that, i'm getting proper http response not being mapped. i'm not sure why?

i've updated restkit package 0.20.2. i'm not facing problem now. should fixed in update.